Answer:
C
Step-by-step explanation:
240m= 4h
120km
V= 120/4 = 30 km/h
I hope this helps, have a good day
Answer: B
Step-by-step explanation:
To isolate x, you divide both sides by 21
21x=7

x = 7/21
Simplify by dividing both the numerator and denominator by 7
x = 1/3
Since, 1/3 is not an option, B is the correct answer
What does that 3/x and 2/x mean? 2x and 3x or x^2 and x^3?